Nickel-Iron 1J79 Magnetic Wire for Shielding and Transformer Core Applications

Product Description

Overview
1J79 magnetic wire is a high-performance nickel-iron alloy with exceptional soft magnetic behavior. Its high nickel content allows for effective magnetic shielding and transformer core winding in high-sensitivity environments. It is particularly suitable for applications that demand high flux density with minimal magnetic loss.

Product Highlights

• Over 79% nickel content

• Low coercivity (Hc < 1 A/m)

• High Bs and μmax

• Excellent corrosion resistance in dry environments

• Tight dimensional tolerance

Common Uses

• Magnetic shielding in aerospace and defense

• Transformer cores in medical imaging devices

• Inductive components for signal filtering

• Audio transformers and pickup coils

• EMI/RFI shielding modules

Performance Principles
When placed in a magnetic field, the alloy rapidly magnetizes with minimal energy loss, thanks to its low coercive force and high domain wall mobility. The composition is fine-tuned for maximum flux response while maintaining mechanical workability.

Specification Table

• Reduces signal interference in complex circuits

• Improves efficiency in magnetic cores

• Easy to form into coils or windings

• Low hysteresis loss

• Customization options available

FAQ

Q1: Is this wire magnetically anisotropic?
No, it is isotropic and behaves uniformly in all directions after proper annealing.

Q2: Can it be electroplated?
Yes, it is compatible with copper, nickel, and silver plating.

Q3: What’s the standard packaging method?
Usually supplied on plastic spools or vacuum-sealed coils per customer requirement.